amorphous ribbon
Recently Published Documents


TOTAL DOCUMENTS

308
(FIVE YEARS 36)

H-INDEX

21
(FIVE YEARS 4)

2022 ◽  
Vol 1213 (1) ◽  
pp. 012009
Author(s):  
N Sitnikov ◽  
A Shelyakov ◽  
I Zaletova

Abstract The study of the effect of electropulse treatment with a variable duration on the crystallization processes and the structure of a amorphous TiNiCu alloy with 25 at.% Cu in comparison with isothermal annealing and heating at a constant speed was carried out. The alloy was fabricated by rapid-quenching from the liquid state (melt spinning technique) at the cooling rate of the melt of about 106 °C/s in the form of a ribbon with a thickness of 28 μm with a surface crystal layer with a thickness of about 2-3 μm. To remove the crystal layer, the method of double-sided electrochemical polishing was used. The studies were carried out by methods of differential scanning calorimetry, metallography and scanning electron microscopy. It was established that the formation of the crystalline phase in the electropulse treatment of the amorphous ribbon occurs from the surface to the inner part due to the predominant formation and growth of columnar crystals with subsequent nucleation and growth of crystals in the rest of the ribbon.


2021 ◽  
pp. 110012
Author(s):  
Binbin Liu ◽  
Caiyun Liu ◽  
Xin Jiang ◽  
Lei Zhang ◽  
Li You ◽  
...  

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6598
Author(s):  
Xiaoyu Shen ◽  
Yuntian Teng ◽  
Xingxing Hu

Traditional fluxgate sensors used in geomagnetic field observations are large, costly, power-consuming and often limited in their use. Although the size of the micro-fluxgate sensors has been significantly reduced, their performance, including indicators such as accuracy and signal-to-noise, does not meet observational requirements. To address these problems, a new race-track type probe is designed based on a magnetic core made of a Co-based amorphous ribbon. The size of this single-component probe is only Φ10 mm × 30 mm. The signal processing circuit is also optimized. The whole size of the sensor integrated with probes and data acquisition module is Φ70 mm × 100 mm. Compared with traditional fluxgate and micro-fluxgate sensors, the designed sensor is compact and provides excellent performance equal to traditional fluxgate sensors with good linearity and RMS noise of less than 0.1 nT. From operational tests, the results are in good agreement with those from a standard fluxgate magnetometer. Being more suitable for modern dense deployment of geomagnetic observations, this small-size fluxgate sensor offers promising research applications at lower costs.


2021 ◽  
Vol 294 ◽  
pp. 120258
Author(s):  
Libo Zhang ◽  
Lianxiang Qiu ◽  
Qingyao Zhu ◽  
Xiong Liang ◽  
Jingxiong Huang ◽  
...  

2021 ◽  
Vol 43 (5) ◽  
pp. 655-671
Author(s):  
M. O. Vasylyev ◽  
◽  
V. M. Shyvaniuk ◽  
B. M. Mordyuk ◽  
I. V. Zagorulko ◽  
...  

Micromachines ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 937
Author(s):  
Shaotao Zhi ◽  
Xuecheng Sun ◽  
Qiaozhen Zhang ◽  
Jie Chen ◽  
Xiangfen Zhang ◽  
...  

Demagnetization effect plays an important role in the magnetic core design of the orthogonal fluxgate sensor. In this paper, a meander-core orthogonal fluxgate sensor based on amorphous ribbon is described. The demagnetization model of meander-core structures is established, and the average demagnetization factor can be evaluated by finite element modeling. Simulation and experimental analyses were performed to study the effects of demagnetization on the sensitivity and linear range of orthogonal fluxgate sensors in the fundamental mode by varying the number of strips, the line width, and the spacing of the meander-cores. The results were compared and revealed a very close match. The results show that the demagnetization factor increases with an increase in the number of strips and the line width, which leads to an increase in the linear range of the sensors. The sensitivity can be improved by increasing the number of strips appropriately, however, it is reduced when the line width increases. Smaller spacing results in a larger demagnetization factor due to the magnetic interactions between adjacent strips, which reduces the sensitivity of the sensor. The results obtained here from simulations and experiments are useful for designing magnetic sensors with similar structures.


Sign in / Sign up

Export Citation Format

Share Document